Hi,
We’ve seen that SharePoint returns the date/time data like this:
2013-02-08T08:00:00
However, in order to submit the date/time data back into SharePoint, this format is NOT accepted.
The accepted formatting is:
2013-02-08 08:00:00
This means that the T is replaced with a space.
We typically add a second field (where the T is replaced with a space) and map this second field into the list.
Hope this helps!